RGB for ZX Spectrum 128, +2, +2A, +3

Size: px
Start display at page:

Download "RGB for ZX Spectrum 128, +2, +2A, +3"

Transcription

1 RGB for ZX Spectrum 128, +2, +2A, +3 Introduction... 2 Video Circuitry... 3 Audio Circuitry... 8 Lead Wiring... 9 Testing The Lead Spectrum +2A/+3 RGB Differences Circuitry Calculations

2 Introduction The Spectrum 128 improves upon the display quality provided by the 48K Spectrum by having a dedicated socket that outputs both composite video and RGB signals. The composite video output measures 1.2V pk-pk at 75 ohm and is almost suitable for direct connection to the VIDEO IN pin of a TV's SCART socket. The Spectrum 128 also provides RGB outputs at 5V TTL level. However, since they are TTL signals, they are either at 0V for no colour or 5V for colour on. As a result, the two shades of each colour available from the Spectrum 128 are not generated. To overcome this drawback, the Spectrum 128 outputs another TTL signal that indicates whether the colour being output should be shown at bright or normal intensity. Separating the BRIGHT signal from the red, green and blue components allows the Spectrum 128 to drive a monitor that accepts TTL level RGB input s, albeit with a loss of the two shades of each colour. In order to connect the Spectrum 128 to a TV with a SCART socket additional circuitry must be implemented to convert the signal levels. Further circuitry can combine the BRIGHT signal with the colour signals to generate the two shades of each colour. Fortunately, this circuitry is very simple and this web page describes how to construct a suitable lead. It should be noted that a video cable designed for the Spectrum +2A or +3 is not suitable for use with the Spectrum 128 or +2. When Amstrad released the Spectrum +2A and +3 they kept the same style of monitor socket but altered the signals output by each pin. The +2A/+3 socket now outputs RGB signals suitable for direct connection to a TV with a SCART socket. The BRIGHT signal is no longer available as it is now combined with the red, green and blue signals internally. The composite video signal provided on the Spectrum 128 is no longer available on the Spectrum +2A or +3. See the Spectrum +2A/+3 RGB Differences section for further details

3 Video Circuitry The ULA in the Spectrum 128 outputs TTL level red, green, blue and sync signals and from these a TEA2000 Encoder video chip produces a composite video signal. The TTL level signals are taken to the monitor socket via 68 ohm resistors and the composite video signal is taken to the monitor socket via a 75 ohm resistor, as shown in the diagram below

4 The monitor socket of the Spectrum 128 is a female 8 pin DIN (type 45326) and the signals available are: Pin Signal Level 1 Composite Video 75 ohm, 1.2V pk-pk 2 0 Volts DC 0V 3 Bright Output TTL 4 Composite Sync TTL 5 Vertical Sync TTL 6 Green TTL 7 Red TTL 8 Blue TTL The Spanish version of the Spectrum 128 has a different RGB socket pin out. The Spanish Spectrum 128 (Investronica Model 2.1) also provides a female 8 pin DIN (type 45326) for its RGB socket but the signals output by each pin are different. The pin configuration is shown below. Pin Signal Level Volts DC 0V 3 Composite Video 75 ohm, 1.2V pk-pk 4 Composite Sync TTL 5 Bright Output TTL 6 Green TTL 7 Red TTL 8 Blue TTL The internal circuitry of the RGB socket is identical to that of the UK Spectrum

5 The layout of the SCART socket (also known as a Peritel or a Euro connector) is as follows: The pin signals available on a SCART socket are shown below, but note that some TVs may only support a subset of these. Pin Signal Audio Output Right Audio Input Right Audio Output Left Level 0.5V RMS, <1K output impedance 0.5V RMS, >10K input impedance 0.5V RMS, <1K output impedance 4 Audio Ground 0 Volts 5 6 Blue Video Ground Audio Input Left 0 Volts 0.5V RMS, >10K input impedance 7 Blue Video 0.7V pk-pk +/- 2dB, 75 ohm input and output impedance 8 Function Switching 0 to 2V = TV (default if unconnected). 5 to 8V = TV wide screen. 9.5 to 12V = AV mode. >10K input impedance [When an AV source becomes active it sets 12V on pin 8 and causes the TV to automatically switch to that SCART input. When the source stops, the signal returns to 0V and TV viewing is resumed. If a 16:9 program is present, the source raises the signal on pin 8 to only 5V.] - 5 -

6 9 10 Green Video Ground Comms Data Line 2 0 Volts This signal allows devices to communicate serial data 11 Green Video 0.7V pk-pk +/- 2dB, 75 ohm input and output impedance Comms Data Line 1 Red Video Ground Comms Data Ground This signal allows devices to communicate serial data 0 Volts 0 Volts 15 Red Video 0.7V pk-pk +/- 2dB, 75 ohm input and output impedance 16 Blanking 75 ohm input and output impedance. 0V to 0.4V: TV is driven by the composite video input signal on pin 20 (default if unconnected). 1V to 3V: TV is driven by the Red, Green, Blue signals and composite sync signal on pin Video Ground 0 Volts 18 Blanking Ground 0 Volts 19 Video Output 1V pk-pk including sync, +/- 2dB, 75 ohm output impedance 20 Video Input 1V pk-pk including sync, +/- 2dB, 75 ohm input impedance 21 Common Ground 0 Volts The Spectrum 128 can be connected to a SCART socket via composite video (CVBS) and only requires a single 15 ohm resistor, as shown in the circuit diagram below. The resistor reduces the 1.2V pk-pk signal output by the Spectrum 128 to 1V pk-pk required by the SCART

7 The circuitry required to connect the Spectrum 128 to a SCART socket via RGB consists of only resistors and diodes. The diagram below shows the circuit required for each of the colour signals. Resistor R1 reduces the colour signal down to a level suitable for the SCART socket. When the BRIGHT signal is high, it has no effect on the colour signal level due to the diode and the bright shade of the colour is produced as a result when the colour signal is high. For the normal intensity colour, the BRIGHT signal is low and resistor R2 reduces the signal level coming out of the Spectrum 128. The internal 68 ohm resistor on the colour line provides short circuit protection. The other output required from the Spectrum 128 when connecting via RGB is the composite sync signal and this should be connected to the SCART socket's VIDEO IN line via a 390 ohm series resistor and 150 ohm parallel resistor, as shown in the circuit below. The FUNCTION SWITCHING signal (pin 8) on the SCART socket is used to allow the TV set to automatically select to show the SCART input when a signal is present. The BLANKING signal (pin 16) on the SCART socket is used to inform the TV set whether the SCART input to show is composite video or RGB. If the BLANKING signal is left disconnected then composite video is the default AV input type. If the FUNCTION SWITCHING signal is left disconnected then the AV input must be selected manually. The table below shows the different permutations: - 7 -

8 FUNCTION SWITCHING (Pin 8) BLANKING (Pin 16) TV Mode 0V - 2V 0V - 0.4V Composite Video, Manual Selection 0V - 2V 1V - 3V RGB, Manual Selection 9.5V - 12V 0V - 2V Composite Video, Automatic Selection 9.5V - 12V 1V - 3V RGB, Automatic Selection For TV sets that allow manual selection of the SCART socket's composite video and RGB inputs, the FUNCTION SWITCHING and BLANKING signals can be left disconnected. For TV sets that allow manual selection of the SCART input but not whether the input should be composite video or RGB, then leaving the BLANKING pin disconnected will cause the composite video input to be selected. To specify that the input should be RGB, it is necessary to connect the BLANKING pin to 1V - 3V. The Spectrum 128's RGB socket does not provide a +5V or a +12V output, which would have been useful when connecting the FUNCTION SWITCHING and BLANKING pins. Instead, power must be taken from either the RS232 socket, the KEYPAD socket or the edge connector and converted down to the appropriate voltage. If either the BLANKING or FUNCTION SWITCHING pins are connected then the BLANKING GND (pin 18) should be connected to 0V at the Spectrum 128. Audio Circuitry A drawback of the monitor socket on the Spectrum 128 is that it does not provide a sound output, unlike the Spectrum +2A and +3. It is therefore necessary to obtain the sound signal from the MIC cassette port via a 3.5mm Jack plug. The SCART socket has separate connections for left and right audio channels and so these must be wired together. The voltage from the Spectrum 128's MIC socket is typically 200mV and this is suitable for directly driving the SCART's audio inputs since these can accept up to 0.5V rms

9 Lead Wiring The complete circuitry and wiring of a SCART lead for the Spectrum 128 is shown below. The SCART socket's audio ground can either be connected to the video grounds inside the SCART plug or to the ground signal from the MIC socket. If the audio ground is connected to the video grounds inside to TV set then the MIC ground connection should not be made as this would cause a ground loop. Note that in the diagram above the composite video signal (CVBS) has been used instead of the composite sync signal. This yields the added benefit that the same lead can be used to link up to a TV either via an RGB connection or via a composite video connection, and is useful as not all TV sets support an RGB connection. The composite video signal contains all the synchronising information present in the composite sync signal and so this method relies on the TV set discarding the picture information. If problems are encountered then it is best to construct two leads, one for each connection type. The 470 ohm and 150 ohm resistor - 9 -

10 combination required when the composite sync signal is used needs to be replaced with a 15 ohm resistor when the composite video signal is used. The FUNCTION SWITCHING and BLANKING pins have not been connected in the diagram above but may be required on some TV sets. In the unlikely event that manual AV selection is not available for a TV set then +12V must be obtained from either the RS232 socket, the KEYPAD socket or the edge connector and connected directly to the FUNCTION SWITCHING input. If the BLANKING pin needs to be connected in order to select the SCART's RGB input then +12V or +5V must be obtained from either the RS232 socket, KEYPAD socket or the edge connector and converted down to the appropriate voltage. Full circuitry calculations can be found be here. The audio signal from the MIC socket can be taken into the DIN plug and simply routed down the cable to the SCART plug, although it should ideally be separately screened to minimise cross talk with the video signals. The lead I constructed houses all of the circuitry in the SCART plug and is shown below

11 Testing The Lead The Spectrum 128 can display a test screen at start up that is designed to be used when tuning in a TV set. The test screen is accessed by holding down the BREAK key whilst resetting the Spectrum 128. The test screen consists of a series of vertical lines showing each of the shades of colour available from the Spectrum, with a one second 440Hz tone produced every other second. A screenshot of the test screen is shown below. The photos below show the relative clarity of the TV display when using the aerial lead, the composite video connection and the RGB connection. Aerial Composite Video RGB

12 Spectrum +2A/+3 RGB Differences The Spectrum +2A and +3 also provides a female 8 pin DIN (type 45326) for its RGB socket but the signals output by each pin are different. The pin configuration is shown below. Pin Signal Level V 2 0 Volts DC 0V 3 Audio Out 200mV pk-pk 4 Composite Sync 0.48V V 6 Green 1.67V 7 Red 1.67V 8 Blue 1.67V The voltages quoted for the composite sync and colour signals are the values that would be dropped across a 75 ohms load resistance. The internal circuitry of the RGB socket on the Spectrum +2A/+3 is shown below

13 The resistors on the red, green and blue lines are 150 ohms instead of 68 ohms as on the Spectrum 128. The composite sync (CSYNC) signal has an inline 470 ohms resistor with 150 ohms resistor to ground, where as the Spectrum 128 just has an inline 68 ohms resistor. The BRIGHT signal is combined with the colour signals internally via 150 ohm resistors and signal diodes. The BRIGHT, composite video (CVBS) and vertical sync (VSYNC) signals are no longer output at the RGB socket, but are replaced with AUDIO OUT and two +12V lines. These +12V lines are delivered through a 1K resistor. Spectrum +2A/+3 RGB colour outputs require additional resistors. Without them the bright circuitry is not effective and the voltage levels into the SCART socket are too high. The circuitry required is shown below. Note that the Spectrum +2A and +3 TTL outputs do not drop with low value loads connected as happens on the Spectrum

14 The calculation of the resistor value for each colour signal line is as follows: 75*5 / (R ) = 0,7 hence R=311 ohms The nearest standard resistor value is 330 ohms and this yields a voltage of 0.67V for the bright shade of colour, and 0.44V for the normal intensity shade. To allow the TV set to automatically select the SCART socket when the Spectrum +2A/+3 is connected, the FUNCTION SWITCHING pin of the SCART socket must be connected to one of the 12V lines of the RGB socket. Since the Spectrum +2A/+3 only provides RGB outputs, it may be necessary on some TVs to connect the BLANKING pin of the SCART socket to 1V - 3V. However, this can not be obtained from one of the 12V lines of the RGB socket via a simple resistor voltage divider circuit. The following calculation illustrates this: 75*12 / (75+R) = 1 hence R=825 ohms However, the 12V has a 1K inline resistor and the value of R calculated includes this. In effect, a negative resistance of 175 ohms is required! Connecting one of the 12V lines to the BLANKING pin directly yields 0.84V and this is below the specification of 1V - 3V. However, this may be sufficient for a TV set as the CVBS threshold is 0.4V (it worked with my TV), but this solution is far from ideal. Note that both 12V lines at the RGB socket are

15 connected directly together and so if one is connected to the BLANKING pin then the other will also drop to 0.84V. As a result, it will no longer be able to properly drive the FUNCTION SWITCHING pin. An alternative 12V source could be obtained from the RS232 socket, the AUX socket or the edge connector and the calculations when using these are as given for the Spectrum 128. If either the BLANKING or FUNCTION SWITCHING pins are connected then the BLANKING GND (pin 18) should be connected to 0V at the Spectrum

16 Circuitry Calculations The Spectrum 128's RGB socket outputs a composite video signal (CVBS) at 1.2V pk-pk and must be converted down to 1V pk-pk via a series resistor. The value of this resistor is calculated by: 75*1,2 / (R+75) = 1 hence R=15 ohms The other signals from the Spectrum 128's RGB socket are at TTL level and must be attenuated so that they are suitable for the SCART socket. In theory, this should be a straight forward matter of using voltage divider circuitry, but things turn out to be a little more complex. To divide 5V such that 0.7V is dropped acrossed the SCART socket's 75 ohms input would require a dividing resistor of 390 ohms in series with the internal 68 ohm resistor. Therefore the total load resistance is only 533 ohms, and this is slow low that it becomes significant with regard to the colour signal circuitry's output imped ance. As a result the TTL high level drops as the total load resistance decreases, and this relationship is not linear. In the diagram below, the colour signal output circuitry is represented by a simple voltage divider. This output is denoted as Vc and in series with this is the internal 68 ohm resistor. The load resistance Rl is then connected between the 68 ohm resistor and ground. The voltage dropped across the last 75 ohms of Rl would be the voltage applied to the SCART socket. The relationship between load resistance (Rl) and voltage out (Vo) can be determined by connecting different load resistances to one of the colour lines and measuring the corresponding output voltage. Since that the internal 68 ohm resistor is in series with the load resistance, extrapolation can be used to calculate the voltage that is being output by the TTL logic (Vc). Voltage divider

17 calculations can then be performed to determine the voltage that would be dropped across the 75 ohms (Vs). The table below shows these figures for a range of resistance values. Rl (ohm) Vo (V) Vc (V) Vs (V) K K K From this table, graphs can be plotted that show the exponential relationship between the output voltage and the load resistance. Graphs of Rl against Vo and Vc are shown below

18 A graph of Rl against Vs is shown below. Ideally, the TTL output level should not drive such a low load resistance and so a buffer stage would be used. However, since the Spectrum 128 does not provide a power line on its RGB

19 socket, this would have to be obtained from elsewhere, otherwise passive circuitry must be used. When producing a passive design, a compromise between TTL logic high level and output voltage level must be made. The graphs provide the key for determining this compromise. TTL logic high is defined as 2.7V (assuming 74LS logic family) or above and so the voltage can safely drop down to this limit but bare in mind that other ciruitry is being driven by these outputs and so a figure higher than this should be aimed for. Each colour signal must be converted down to a maximum of 0.7V and this can be achieved by using a series resistor. From the table and the Vs versus Rl graph above the series resistance required can be determined and turns out to be about 220 ohms. Since this includes the 75 ohms resistance in the TV set, a series resistance of 145 ohms is required. The nearest standard value is 150 ohms. This resistance produces the bright shade of the colour. The normal intensity colour is generated using an additional resistor and a diode as shown below. The BRIGHT signal will be a 0V for the normal intensity shade and hence the diode will conduct if the colour signal is high. The equivalent circuit shown below can be used to determine the value for Rb. Note that the diode will have a resistance, Rd, and this must be taken into account in the calculations. However, this resistance is not a fixed value and will vary with the voltage dropped across the diode

20 The voltage level for the normal intensity shade must now be selected. The lower the voltage level chosen, the greater the constrast between the bright and normal intensity shades of colour. Ideally the level chosen should result in the constrast being similar to that obtained when using the aerial lead. Selecting the voltage level for normal intensity to be 0.475V, the value of Rb+Rd is calculated as follows: 75*Vo / (150+75) = 0,475 hence Vo=1,425V From the graph, the resistance required (Rt) for an output voltage of 1.425V is about 120 ohms. Hence the combination of Rb, Rd, 150 ohms and 75 ohms must equate to 120 ohms. (150+75)*(Rb+Rd) / ( Rb+Rd) = 120 hence Rb+Rd=257 ohms Assuming Rd is about 0.7V then: Rd*1,425 / (Rb+Rd) = 0,7 hence Rd=0,9655 Rb Combining these last two equations: 0,9655Rb+Rb = 257 hence Rb=131 ohms Selecting the nearest standard higher resistor value gives Rb = 150 ohms. Note that the value calculated depends upon the voltage drop assumed across the diode and this can vary in the region of 0.6V to 0.8V. The diode's resistance depends upon the voltage drop across it and this in turn affects the total load resistance on the Spectrum 128's colour line, and hence the value of Vo. As a result, the calculations for Rb are approximate and provide a guideline for the value to be used. The CSYNC output from the Spectrum 128 is also at TTL level and must be converted down to 0.3V. From the Vs versus Rl graph, it can be seen that a load resistance of about 800 ohms would be required. However, the CSYNC output (as well as the colour outputs) presented to the SCART scoket should ideally have an output impedance of 75 ohms. To achieve this

21 would require buffering but this would lead to more complex circuitry. Therefore, the passive approach produces non-ideal output impedances but this should not be a problem as long as they are not too far from 75 ohms. This is the case for the colour outputs. The CSYNC output impedance can be reduced by adopting the following circuit: Selecting the value of resistor R1 to be 150 ohms ensures the total output impedance will always be lower than this. The resistor R2 can then be calculated to give an output to the SCART socket of 0.3V. When the TV set is connected the combination of the TV's 75 ohms in parallel with the 150 ohms equates to 50 ohms. Voltage divider calculations can be performed to determine the voltage that would be dropped across this 50 ohms, and from this the total load resistance required. This turns out to be about 470 ohms, of which 50 ohms is contributed from the combination of R1 and the TV's 75 ohms. Therefore a resistance of 420 ohms is required and the nearest standard value to this is 390 ohms. To automatically select the SCART input, 9.5V - 12V must be connected to the SCART socket's FUNCTION SWITCHING input (pin 8). This can be obtained from the RS232 socket, KEYPAD socket or the edge connector. To select RGB mode, 1V - 3V must be connected to the SCART socket's BLANKING input (pin 16) and this can be generated from 12V via a voltage divider. When using the 12V from the edge connector, the calculations are as follows: 75*12 / (R+75) = 1 hence R=825 ohms The nearest standard resistor value is 820 ohms and this yields a voltage of 1.01V. The 12V at the RS232 and KEYPAD sockets is via an 180 ohm resistor and hence the calculation required is slightly different, as follows: 75*12 / (R ) = 1 hence R=645 ohms The nearest standard resistor value is 620 ohms and this yields a voltage of 1.03V

AUDIO EXTENSION SYSTEM

AUDIO EXTENSION SYSTEM AUDIO EXTENSION SYSTEM PRODUCT DOCUMENTATION 261 Pepe s Farm Road, Milford, CT 06460 Tel: 203-878-9838 Fax: 203-874-0157 World Wide Web: www.lightwavecom.com email: info@lightwavecom.com AES Product Documentation

More information

Features, Benefits, and Operation

Features, Benefits, and Operation Features, Benefits, and Operation 2014 Decibel Eleven Contents Introduction... 2 Features... 2 Rear Panel... 3 Connections... 3 Power... 3 MIDI... 3 Pedal Loops... 4 Example Connection Diagrams... 5,6

More information

Game Console RGB SCART Cable Diagrams

Game Console RGB SCART Cable Diagrams Page 1 of 8 Game Console RGB SCART Cable Diagrams For anyone unfamiliar with what RGB video is see this Video Primer. SCART pinouts and signal info can be found here. SCART (aka Peritel or Euroconnector)

More information

MISE - STEREO ENCODER

MISE - STEREO ENCODER MISE - STEREO ENCODER 1. FRONT PANEL CONTROLS and INDICATORS AUDIO LEVEL F1 F2 F3 F4 OVER- MOD F5 F1:AUDIO LEVEL Control The setting of this screwdriver adjustment determines the audio input signal level.

More information

Description of Serial and Parallel Port Control Cables. Filip Sala. Warsaw, 22nd February 2006 (revised 8/06/2008)

Description of Serial and Parallel Port Control Cables. Filip Sala. Warsaw, 22nd February 2006 (revised 8/06/2008) Description of Serial and Parallel Port Control Cables Filip Sala Warsaw, 22nd February 2006 (revised 8/06/2008) This document contains information about making Serial and Parallel Control Cables for Canon

More information

Icom CAT and Digi-Mode Interface Guide. This unit is compatible with the CI-V Interface on the following radios

Icom CAT and Digi-Mode Interface Guide. This unit is compatible with the CI-V Interface on the following radios Icom CAT and Digi-Mode Interface Guide First of all, thank you for purchasing my Icom CAT and Digimode Interface Cable. Hopefully, this guide will allow you to get your PC connected to your Icom Radio

More information

15k RGB Sync on Green to VGA/XGA Converter Operation Manual

15k RGB Sync on Green to VGA/XGA Converter Operation Manual 15k RGB Sync on Green to VGA/XGA Converter Operation Manual Introduction This unit is a high quality video scaler that converts RGB sync on green to VGA/XGA output. RGB sync on green is through Scart connection

More information

3 DC Circuits, Ohm's Law and Multimeters

3 DC Circuits, Ohm's Law and Multimeters 3 DC Circuits, Ohm's Law and Multimeters Theory: Today's lab will look at some basics of electricity and how these relate to simple circuit diagrams. Three basic terms are important to a study of electricity.

More information

PHYS-2212 LAB Ohm s Law and Measurement of Resistance

PHYS-2212 LAB Ohm s Law and Measurement of Resistance Objectives PHYS-2212 LAB Ohm s Law and Measurement of Resistance Part I: Comparing the relationship between electric current and potential difference (voltage) across an ohmic resistor with the voltage-current

More information

Smarthome SELECT Bluetooth Wireless Stereo Audio Receiver and Amplifier INTRODUCTION

Smarthome SELECT Bluetooth Wireless Stereo Audio Receiver and Amplifier INTRODUCTION Smarthome SELECT Bluetooth Wireless Stereo Audio Receiver and Amplifier INTRODUCTION The Smarthome SELECT Bluetooth Wireless Stereo Audio Receiver and Amplifier is a multi-functional compact device. It

More information

VGA to RGB + composite sync -converter

VGA to RGB + composite sync -converter VGA to RGB + composite sync -converter This article consists of one circuits which I have designed for connecting VGA card to other display devices than just a VGA monitor. This circuits makes it possible

More information

3_given a graph of current_voltage for a resistor, determine the resistance. Three resistance R1 = 1.0 kω, R2 = 1.5 kω, R3 = 2.

3_given a graph of current_voltage for a resistor, determine the resistance. Three resistance R1 = 1.0 kω, R2 = 1.5 kω, R3 = 2. Ohm s Law Objectives: 1_measure the current_voltage curve for a resistor 2_construct a graph of the data from objective 1 3_given a graph of current_voltage for a resistor, determine the resistance Equipment:

More information

e-4 AWT07MLED 7 Q TFT LCD MONITOR (LED Backlighted) USER MANUAL

e-4 AWT07MLED 7 Q TFT LCD MONITOR (LED Backlighted) USER MANUAL Thank you for purchasing our product. Please read this User s Manual before using the product. Change without Notice AWT07MLED 7 Q TFT LCD MONITOR (LED Backlighted) USER MANUAL e-4 SAFETY PRECAUTIONS Federal

More information

VJ 6040 Mobile Digital TV UHF Antenna Evaluation Board

VJ 6040 Mobile Digital TV UHF Antenna Evaluation Board VISHAY VITRAMON Multilayer Chip Capacitors Application Note GENERAL is a multilayer ceramic chip antenna designed for receiving mobile digital TV transmissions in the UHF band. The target application for

More information

Version 2.1

Version 2.1 IPC-1H Version 2.1 Thank you for purchasing our COMM Integrated Control Switches! COMM Integrated Control Switches (IPC Series) - Designed to control your Audiovisual Equipment in the most simplified ways

More information

Table of contents. Table of contents

Table of contents. Table of contents Table of contents Table of contents 1 Appearance and Definition... 4 1.1 Appearance and Definition of 10-pin Interface... 4 1.1.1 Appearance... 4 1.1.2 MMP 10 pin definition... 5 1.1.3 MMP 10 electrical

More information

Lab E1: Introduction to Circuits

Lab E1: Introduction to Circuits E1.1 Lab E1: Introduction to Circuits The purpose of the this lab is to introduce you to some basic instrumentation used in electrical circuits. You will learn to use a DC power supply, a digital multimeter

More information

Current Loop Application Note 1495

Current Loop Application Note 1495 Current Loop Application Note Document No. CLAN1495 International Headquarter B&B Electronics Mfg. Co. Inc. 707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350 USA Phone (815) 433-5100 -- General Fax

More information

Intro to Digital Logic Circuits

Intro to Digital Logic Circuits FORDHAM UNIVERSITY CISC 3593 Fordham College Lincoln Center Computer Organization Dept. of Computer and Info. Science Spring, 2011 Lab 1 Intro to Digital Logic Circuits 1 Introduction In this lab, the

More information

Resistors in Series and Parallel

Resistors in Series and Parallel Resistors in Series and Parallel INTRODUCTION Direct current (DC) circuits are characterized by the quantities current, voltage and resistance. Current is the rate of flow of charge. The SI unit is the

More information

IC LM 3914 Design Note

IC LM 3914 Design Note IC LM 3914 Design Note 1 LED displays are necessary to indicate audio levels, measurements and even for ornamental purposes. The simplest way to design an LED display is the circuit around the popular

More information

IQ151 CONTROLLER DATA SHEET

IQ151 CONTROLLER DATA SHEET IQ151 CONTROLLER DATA SHEET The IQ151 is a controller in the Trend range with 64 inputs and 32 outputs. Full DDC (direct digital control) with PID control loops is provided. The output channels may be

More information

MIDECO v.2 64-outputs MIDI note decoder

MIDECO v.2 64-outputs MIDI note decoder MIDECO v.2 64-outputs MIDI note decoder USER MANUAL Roman Sowa 2013 www.midi-hardware.com 1. Overview Thank you for choosing MIDECO as your new MIDI-to-digital converter. This short manual will guide you

More information

Advanced LED Controller (LED Chaser)

Advanced LED Controller (LED Chaser) Advanced LED Controller (LED Chaser) Introduction. Advanced LED controller (also known as LED Chaser) is microcontroller based circuit designed to produce various visual LED light effects by controlling

More information

Eðlisfræði 2, vor 2007

Eðlisfræði 2, vor 2007 [ Assignment View ] [ Pri Eðlisfræði 2, vor 2007 31. Alternating Current Circuits Assignment is due at 2:00am on Wednesday, March 21, 2007 Credit for problems submitted late will decrease to 0% after the

More information

Build Your Own Transistor Logic Circuits. Workshop Manual v1.0

Build Your Own Transistor Logic Circuits. Workshop Manual v1.0 Build Your Own Transistor Logic Circuits Workshop Manual v.0 VCF East 7.0 May 4 5, 20 Build Your Own Transistor Logic Circuits. Introduction This workshop allows you to build a modular, plugin card containing

More information

School of Engineering Department of Electrical and Computer Engineering

School of Engineering Department of Electrical and Computer Engineering 1 School of Engineering Department of Electrical and Computer Engineering 332:223 Principles of Electrical Engineering I Laboratory Experiment #4 Title: Operational Amplifiers 1 Introduction Objectives

More information

Digital Fundamentals

Digital Fundamentals Digital Fundamentals Tenth Edition Floyd Chapter 1 2009 Pearson Education, Upper 2008 Pearson Saddle River, Education NJ 07458. All Rights Reserved Analog Quantities Most natural quantities that we see

More information

MIDECO 64-outputs MIDI note decoder USER MANUAL. Roman Sowa 2012

MIDECO 64-outputs MIDI note decoder USER MANUAL. Roman Sowa 2012 MIDECO 64-outputs MIDI note decoder USER MANUAL Roman Sowa 2012 www.midi-hardware.com 1.Overview Thank you for choosing MIDECO as your new MIDI-to-digital converter. This short manual will guide you through

More information

T9 / R9. Long Range RF Modules. Features. Applications. General Description

T9 / R9. Long Range RF Modules. Features. Applications. General Description T9 / R9 Long Range RF Modules Features FM Narrow Band Crystal Stabilised Range up to 1,000 Metres 868MHz / 433MHz Versions 4 channel versions 434.075MHz 433.920MHz 434.225MHz 434.525MHz Miniature SIL Package

More information

The George Washington University School of Engineering and Applied Science Department of Electrical and Computer Engineering

The George Washington University School of Engineering and Applied Science Department of Electrical and Computer Engineering The George Washington University School of Engineering and Applied Science Department of Electrical and Computer Engineering Final Design Report Dual Channel Stereo Amplifier By: Kristen Gunia Prepared

More information

How to use the OMEGALOG software with the OM-SQ2010/SQ2020/SQ2040 Data Loggers.

How to use the OMEGALOG software with the OM-SQ2010/SQ2020/SQ2040 Data Loggers. How to use the OMEGALOG software with the OM-SQ2010/SQ2020/SQ2040 Data Loggers. OMEGALOG Help Page 2 Connecting Your Data Logger Page 2 Logger Set-up Page 3 Download Data Page 8 Export Data Page 11 Downloading

More information

Exp.no. (14) Digital to Analog converters

Exp.no. (14) Digital to Analog converters Exp.no. (14) Digital to Analog converters OBJECT:- To Interface Digital -to-analog converter to 8085 using 8255 and write Assembly Language Program to generate Ramp Wave form. THEORY:- Digital-to-Analog

More information

3TrinsRGB+1c Manual V1 2013/2014

3TrinsRGB+1c Manual V1 2013/2014 3TrinsRGB+1c Manual V1 2013/2014 3TrinsRGB+1c is a analog audio video synthesizer, with the HEF40106 ic as oscillator source. The reason for using this ic is that it is used a lot by people just starting

More information

RS232/RS485 CONVERTER USER'S GUIDE

RS232/RS485 CONVERTER USER'S GUIDE RS/RS CONVERTER USER'S GUIDE DISCLAIMER: RMV ELECTRONICS INC. does not assume any liability arising from the application and/or use of the products described herein, nor does it convey any license under

More information

A Shunt Fixture for Low Impedance Measurements Sam Wetterlin 4/28/11

A Shunt Fixture for Low Impedance Measurements Sam Wetterlin 4/28/11 A Shunt Fixture for Low Impedance Measurements Sam Wetterlin 4/28/11 Introduction Measurements of impedances in the 0.01-10 ohm range are useful for measuring the resistance of capacitors, inductors and

More information

Uno 5800 A/V Receiver

Uno 5800 A/V Receiver hg Uno 5800 A/V Receiver Groundstation Component Receiver The Uno5800 is the first in a line of smart receivers, designed for single-cable, plug and play, integration with the ImmersionRC Ground Station

More information

Mini Effect Gizmo. User s Manual. RJM Music Technology, Inc.

Mini Effect Gizmo. User s Manual. RJM Music Technology, Inc. Mini Effect Gizmo User s Manual RJM Music Technology, Inc. Mini Effect Gizmo User s Manual Version 1.3 September 26, 2013 RJM Music Technology, Inc. 2525 Pioneer Ave #1 Vista, CA 92081 E-mail: support@rjmmusic.com

More information

Advanced Data Capture and Control Systems

Advanced Data Capture and Control Systems Advanced Data Capture and Control Systems Tronisoft Limited Email: sales@tronisoft.com Web: www.tronisoft.com RS232 To 3.3V TTL User Guide RS232 to 3.3V TTL Signal Converter Modules P/N: 9651 Document

More information

Ohm s Law with Cobra3

Ohm s Law with Cobra3 Related Topics Ohm s law, Resistivity, Contact resistance, Conductivity, Power and Work Principle The relation between voltage and current is measured for different resistors. The resistance is the derivative

More information

SBC44B. Single board computer for 44 pin PLCC PICs

SBC44B. Single board computer for 44 pin PLCC PICs Single board computer for 44 pin PLCC PICs Table of Contents 1 Introduction...2 2 Features...3 3 Expansion Connectors...4 3.1 Compact Daughter Board and Daughter Board Connectors...4 3.2 Custom Daughter

More information

SBC44B. Single board computer for 44 pin PLCC PICs

SBC44B. Single board computer for 44 pin PLCC PICs Single board computer for 44 pin PLCC PICs Table of Contents 1 Introduction...2 2 Features...3 3 Expansion Connectors...4 3.1 Compact Daughter Board and Daughter Board Connectors...4 3.2 Custom Daughter

More information

RS232 to RS422/485 Converter

RS232 to RS422/485 Converter R32 to RS422/485 Converter Installation Guide 1. Introduction Thank you for purchasing this R32 to RS422/485 Converter. It is designed for your PC, workstation, thin client, or server to provide instant

More information

Low Noise, Single Supply, Electret Microphone Amplifier Design for Distant Acoustic Signals

Low Noise, Single Supply, Electret Microphone Amplifier Design for Distant Acoustic Signals Low Noise, Single Supply, Electret Microphone Amplifier Design for Distant Acoustic Signals Donald J. VanderLaan November 26, 2008 Abstract. Modern day electronics are often battery powered, forcing the

More information

PHYSICS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits

PHYSICS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits PHYSCS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits This experiment is designed to investigate the relationship between current and potential in simple series

More information

Electronics. Discrete assembly of an operational amplifier as a transistor circuit. LD Physics Leaflets P4.2.1.1

Electronics. Discrete assembly of an operational amplifier as a transistor circuit. LD Physics Leaflets P4.2.1.1 Electronics Operational Amplifier Internal design of an operational amplifier LD Physics Leaflets Discrete assembly of an operational amplifier as a transistor circuit P4.2.1.1 Objects of the experiment

More information

CHAPTER 1 WELCOME TO GRAND ULTIMATE WIRELESS

CHAPTER 1 WELCOME TO GRAND ULTIMATE WIRELESS CHAPTER 1 WELCOME TO GRAND ULTIMATE WIRELESS 1.1 INTRODUCTION (PC/iMAC DV to TV converter with 2.4Ghz AV Sender) Thank you for purchasing the Grand ULTIMATE WIRELESS. GRAND ULTIMATE WIRELESS is a VGA to

More information

Cable Length Meter CLM1. SW2 measured is either short or open circuit by using an ohmmeter if necessary. Cable length measurement and fault location

Cable Length Meter CLM1. SW2 measured is either short or open circuit by using an ohmmeter if necessary. Cable length measurement and fault location Cable Length Meter CLM1 Description This meter produces a direct readout, in metres, of the length of an unterminated coaxial cable of type RG59 (75Ω) or RG58 (50Ω) or equivalent with a resolution of 2.5

More information

EECS 100/43 Lab 2 Function Generator and Oscilloscope

EECS 100/43 Lab 2 Function Generator and Oscilloscope 1. Objective EECS 100/43 Lab 2 Function Generator and Oscilloscope In this lab you learn how to use the oscilloscope and function generator 2. Equipment a. Breadboard b. Wire cutters c. Wires d. Oscilloscope

More information

The full wave rectifier consists of two diodes and a resister as shown in Figure

The full wave rectifier consists of two diodes and a resister as shown in Figure The Full-Wave Rectifier The full wave rectifier consists of two diodes and a resister as shown in Figure The transformer has a centre-tapped secondary winding. This secondary winding has a lead attached

More information

RFS-805. Digital Modulator AV to COFDM. User Manual

RFS-805. Digital Modulator AV to COFDM. User Manual RFS-805 Digital Modulator AV to COFDM User Manual 1. Purpose of use RFS-805 is a digital modulator designed for a processing audio and video signals into COFDM (DVB-T) multiplex. 2. Installation The connections

More information

Electrical Resonance

Electrical Resonance Electrical Resonance (R-L-C series circuit) APPARATUS 1. R-L-C Circuit board 2. Signal generator 3. Oscilloscope Tektronix TDS1002 with two sets of leads (see Introduction to the Oscilloscope ) INTRODUCTION

More information

Filters & Wave Shaping

Filters & Wave Shaping Module 8 AC Theory Filters & Wave Shaping Passive Filters & Wave Shaping What you'll learn in Module 8. Module 8 Introduction Recognise passive filters with reference to their response curves. High pass,

More information

Experiment NO.3 Series and parallel connection

Experiment NO.3 Series and parallel connection Experiment NO.3 Series and parallel connection Object To study the properties of series and parallel connection. Apparatus 1. DC circuit training system 2. Set of wires. 3. DC Power supply 4. Digital A.V.O.

More information

MOTION COORDINATOR MC206X Quick Connection Guide

MOTION COORDINATOR MC206X Quick Connection Guide I/O Connector 1 Analogue In / Inputs 0-7 5 Way Connector Power /CANbus I/O Connector 2 24V Power / I/O 8-15 I/O Connector 3 WDOG / Ref Encoder / Analogue Outputs USB Serial A Serial B Axes 0-3 Encoder

More information

LAB ELEC 25.CALC From Physics with Calculators, Vernier Software & Technology, 2003

LAB ELEC 25.CALC From Physics with Calculators, Vernier Software & Technology, 2003 OHM S LAW LAB ELEC 25.CALC From Physics with Calculators, Vernier Software & Technology, 2003 INTRODUCTION The fundamental relationship among the three important electrical quantities current, voltage,

More information

Modification of an AOR AR-8600 receiver to tune it with a ACECO FC-3002 frequency finder

Modification of an AOR AR-8600 receiver to tune it with a ACECO FC-3002 frequency finder Modification of an AOR AR-8600 receiver to tune it with a ACECO FC-3002 frequency finder Matthias DD1US updated June 2 nd 2011 Description of the ACECO FC-3002 unit: The ACECO FC-3002 is a handheld frequency

More information

Inductors in AC Circuits

Inductors in AC Circuits Inductors in AC Circuits Name Section Resistors, inductors, and capacitors all have the effect of modifying the size of the current in an AC circuit and the time at which the current reaches its maximum

More information

DIP1000. HDMI with USB Over IP LAN. Installation and User s Manual. (Multi cast Version)

DIP1000. HDMI with USB Over IP LAN. Installation and User s Manual. (Multi cast Version) DIP1000 HDMI with USB Over IP LAN (Multi cast Version) Introduction The DIP1000 system is a perfect solution to extend HDMI, USB, and optional IR/RS 232/Remote Power On Off over IP networks. It includes

More information

USB to RS-485 Optically Isolated Interface Handbook Revision 1.0

USB to RS-485 Optically Isolated Interface Handbook Revision 1.0 311-70 USB to RS-485 Optically Isolated Interface Handbook Revision 1.0 Contents Overview... 1 RS-485 Connections... 1 Shield... 1 Line Term... 2 Bias 1 & Bias 2... 2 RS-485 Cable... 2 USB Installation...

More information

RS232C < - > RS485 CONVERTER S MANUAL. Model: LD15U. Phone: 91-79-4002 4896 / 97 / 98 (M) 0-98253-50221 www.interfaceproducts.info

RS232C < - > RS485 CONVERTER S MANUAL. Model: LD15U. Phone: 91-79-4002 4896 / 97 / 98 (M) 0-98253-50221 www.interfaceproducts.info RS232C < - > RS485 CONVERTER S MANUAL Model: LD15U INTRODUCTION Milestone s model LD-15U is a RS232 to RS 485 converter is designed for highspeed data transmission between computer system and or peripherals

More information

Video to PC Adapter. Model: 40971. Operation Manual

Video to PC Adapter. Model: 40971. Operation Manual Video to PC Adapter Model: 40971 Operation Manual Operation Manual Video to PC Adapter Connect a video source with analog outputs to a monitor with a VGA input Model: 40971 Thank you for purchasing the

More information

EE 1202 Experiment #7 Signal Amplification

EE 1202 Experiment #7 Signal Amplification EE 1202 Experiment #7 Signal Amplification 1. Introduction and Goal: s increase the power (amplitude) of an electrical signal. They are used in audio and video systems and appliances. s are designed to

More information

Name: Lab Partner: Section:

Name: Lab Partner: Section: Chapter 6 Capacitors and RC Circuits Name: Lab Partner: Section: 6.1 Purpose The purpose of this experiment is to investigate the physics of capacitors in circuits. The charging and discharging of a capacitor

More information

The RC Circuit. Pre-lab questions. Introduction. The RC Circuit

The RC Circuit. Pre-lab questions. Introduction. The RC Circuit The RC Circuit Pre-lab questions 1. What is the meaning of the time constant, RC? 2. Show that RC has units of time. 3. Why isn t the time constant defined to be the time it takes the capacitor to become

More information

Teach Yourself PIC Microcontroller Programming. Manual PIC 40 Basic Development Board. Amer Iqbal Qureshi. Microtronics Pakistan

Teach Yourself PIC Microcontroller Programming. Manual PIC 40 Basic Development Board. Amer Iqbal Qureshi. Microtronics Pakistan Teach Yourself PIC Microcontroller Programming Manual PIC 40 Basic Development Board Amer Iqbal Qureshi Microtronics Pakistan www.electronicspk.com 40 Pin PIC Microcontroller Basic Board PIC Microcontrollers

More information

LAB 12: ACTIVE FILTERS

LAB 12: ACTIVE FILTERS A. INTRODUCTION LAB 12: ACTIVE FILTERS After last week s encounter with op- amps we will use them to build active filters. B. ABOUT FILTERS An electric filter is a frequency-selecting circuit designed

More information

Application Note 83 Fundamentals of RS 232 Serial Communications

Application Note 83 Fundamentals of RS 232 Serial Communications Application Note 83 Fundamentals of Serial Communications Due to it s relative simplicity and low hardware overhead (as compared to parallel interfacing), serial communications is used extensively within

More information

BrightSign Expander Hardware Guide

BrightSign Expander Hardware Guide Hardware Guide PCBA: Rev C Version: 0.1 Saratoga, CA, USA 1 Table of Contents OVERVIEW... 3 EXPANDER BLOCK DIAGRAM... 4 PORTS... 6 POWER CONNECTOR... 6 OPTICAL SPDIF CONNECTOR... 6 DB25 SWITCH/LED CONNECTOR...

More information

3172V21 - Synthesised WBFM Transmitter

3172V21 - Synthesised WBFM Transmitter 1 General This project is a complete crystal-controlled Wide Band Frequency Modulated (WBFM) transmitter delivering a power output in the order of 10 milli-watts (+10dBm) using simple components. The transmitter

More information

FM Radio Transmitter & Receiver Modules

FM Radio Transmitter & Receiver Modules Features Miniature SIL package Fully shielded Data rates up to 128kbits/sec Range up to 300 metres Single supply voltage Industry pin compatible T5-434 Temp range -20 C to +55 C No adjustable components

More information

VCA1A. User Instructions. Voltage Controlled Attenuator.

VCA1A. User Instructions. Voltage Controlled Attenuator. VCA1A Voltage Controlled Attenuator User Instructions www.cleverlittlebox.com Important - Please Read: The information in this guide is subject to change without notice. CIE-Group shall not be liable for

More information

Object System QM4000. Bus Interface QMI-2. Audio recording adapter SCAN-R

Object System QM4000. Bus Interface QMI-2. Audio recording adapter SCAN-R Complex protection against eavesdropping Enhanced application of MRA-3Q Object System QM4000 Bus Interface QMI-2 Audio recording adapter SCAN-R user manual Read this manual before use Version Q1.2 I. Object

More information

Designing a Poor Man s Square Wave Signal Generator. EE-100 Lab: Designing a Poor Man s Square Wave Signal Generator - Theory

Designing a Poor Man s Square Wave Signal Generator. EE-100 Lab: Designing a Poor Man s Square Wave Signal Generator - Theory EE-100 Lab: - Theory 1. Objective The purpose of this laboratory is to introduce nonlinear circuit measurement and analysis. Your measurements will focus mainly on limiters and clamping amplifiers. During

More information

MPL SERIES INSTRUCTION MANUAL MP SERIES

MPL SERIES INSTRUCTION MANUAL MP SERIES TM MP SERIES MPL SERIES INSTRUCTION MANUAL P O Box 865, Bozeman, MT 5977 Phone (406) 587-490 Fax (406) 587-49 email sales@wavelengthelectronics.com www.wavelengthelectronics.com TABLE OF CONTENTS Features...

More information

************* OWNER'S MANUAL BAMF800/2 BAMF1250/2 BAMF1800/2 BAMF2200/2 BAMF2600/2 BAMF1200/4 BAMF1600/4 BAMF2000/1D BAMF4000/1D BAMF5500/1D

************* OWNER'S MANUAL BAMF800/2 BAMF1250/2 BAMF1800/2 BAMF2200/2 BAMF2600/2 BAMF1200/4 BAMF1600/4 BAMF2000/1D BAMF4000/1D BAMF5500/1D ************* OWNER'S MANUAL BAMF800/2 BAMF1250/2 BAMF1800/2 BAMF2200/2 BAMF2600/2 BAMF1200/4 BAMF1600/4 BAMF2000/1D BAMF4000/1D BAMF5500/1D INTRODUCTION Power Acoustik amplifiers provide high-performance

More information

Use and Application of Output Limiting Amplifiers (HFA1115, HFA1130, HFA1135)

Use and Application of Output Limiting Amplifiers (HFA1115, HFA1130, HFA1135) Use and Application of Output Limiting Amplifiers (HFA111, HFA110, HFA11) Application Note November 1996 AN96 Introduction Amplifiers with internal voltage clamps, also known as limiting amplifiers, have

More information

RS-232 to RS-422/485 Converter Installation Guide

RS-232 to RS-422/485 Converter Installation Guide RS-232 to RS-422/485 Converter Installation Guide Introduction SIIG's RS-232 to 422/485 Converter converts RS- 232 signals to RS-422/485 compatible signal. It offers surge protection for your RS-422/485

More information

Switch board datasheet EB007-00-1

Switch board datasheet EB007-00-1 Switch board datasheet EB007-00-1 Contents 1. About this document... 2 2. General information... 3 3. Board layout... 4 4. Testing this product... 5 5. Circuit description... 6 Appendix 1 Circuit diagram

More information

Scart/Video to HDMI Scaler Box

Scart/Video to HDMI Scaler Box Scart/Video to HDMI Scaler Box Operation Manual CM-393 (1). Introduction: Congratulations on your purchase of the Cypress Video Scaler CM-393. Our professional Video Scaler products have been serving the

More information

Whale 3. User Manual and Installation Guide. DC Servo drive. Contents. 1. Safety, policy and warranty. 1.1. Safety notes. 1.2. Policy. 1.3. Warranty.

Whale 3. User Manual and Installation Guide. DC Servo drive. Contents. 1. Safety, policy and warranty. 1.1. Safety notes. 1.2. Policy. 1.3. Warranty. Whale 3 DC Servo drive User Manual and Installation Guide Contents 1. Safety, policy and warranty. 1.1. Safety notes. 1.2. Policy. 1.3. Warranty. 2. Electric specifications. 2.1.Operation ranges. 3. Connections

More information

SYSTEM 4C. C R H Electronics Design

SYSTEM 4C. C R H Electronics Design SYSTEM 4C C R H Electronics Design SYSTEM 4C All in one modular 4 axis CNC drive board By C R Harding Specifications Main PCB & Input PCB Available with up to 4 Axis X, Y, Z, A outputs. Independent 25

More information

Experiment # (7) FSK Modulator

Experiment # (7) FSK Modulator Islamic University of Gaza Faculty of Engineering Electrical Department Experiment # (7) FSK Modulator Digital Communications Lab. Prepared by: Eng. Mohammed K. Abu Foul Experiment Objectives: 1. To understand

More information

Hands On ECG. Sean Hubber and Crystal Lu

Hands On ECG. Sean Hubber and Crystal Lu Hands On ECG Sean Hubber and Crystal Lu The device. The black box contains the circuit and microcontroller, the mini tv is set on top, the bars on the sides are for holding it and reading hand voltage,

More information

The basic set up for your K2 to run PSK31 By Glenn Maclean WA7SPY

The basic set up for your K2 to run PSK31 By Glenn Maclean WA7SPY The basic set up for your K2 to run PSK31 By Glenn Maclean WA7SPY I am by no means an expert on PSK31. This article is intended to help someone get on PSK31 with a K2. These are the things I did to get

More information

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 956 24-BIT DIFFERENTIAL ADC WITH I2C LTC2485 DESCRIPTION

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 956 24-BIT DIFFERENTIAL ADC WITH I2C LTC2485 DESCRIPTION LTC2485 DESCRIPTION Demonstration circuit 956 features the LTC2485, a 24-Bit high performance Σ analog-to-digital converter (ADC). The LTC2485 features 2ppm linearity, 0.5µV offset, and 600nV RMS noise.

More information

FREQUENCY RESPONSE OF AN AUDIO AMPLIFIER

FREQUENCY RESPONSE OF AN AUDIO AMPLIFIER 2014 Amplifier - 1 FREQUENCY RESPONSE OF AN AUDIO AMPLIFIER The objectives of this experiment are: To understand the concept of HI-FI audio equipment To generate a frequency response curve for an audio

More information

Universal Converter PRODUCT INFORMATION B&B ELECTRONICS. Covers All the Bases:

Universal Converter PRODUCT INFORMATION B&B ELECTRONICS. Covers All the Bases: 4WSD9TB-0712 - p1/5 Model: 4WSD9TB Universal Converter Covers All the Bases: RS-232 to 4-wire RS-422, 2-wire or 4-wire RS-485 Highlights Selectable RS-485 2-wire half-duplex, or RS-485 4-wire full-duplex

More information

Frequency Response of Filters

Frequency Response of Filters School of Engineering Department of Electrical and Computer Engineering 332:224 Principles of Electrical Engineering II Laboratory Experiment 2 Frequency Response of Filters 1 Introduction Objectives To

More information

Wireless Security Camera

Wireless Security Camera Wireless Security Camera Technical Manual 12/14/2001 Table of Contents Page 1.Overview 3 2. Camera Side 4 1.Camera 5 2. Motion Sensor 5 3. PIC 5 4. Transmitter 5 5. Power 6 3. Computer Side 7 1.Receiver

More information

Electronics The application of bipolar transistors

Electronics The application of bipolar transistors Electronics The application of bipolar transistors Prof. Márta Rencz, Gergely Nagy BME DED October 1, 2012 Ideal voltage amplifier On the previous lesson the theoretical methods of amplification using

More information

HARDWARE MANUAL. BrightSign HD120, HD220, HD1020. BrightSign, LLC. 16795 Lark Ave., Suite 200 Los Gatos, CA 95032 408-852-9263 www.brightsign.

HARDWARE MANUAL. BrightSign HD120, HD220, HD1020. BrightSign, LLC. 16795 Lark Ave., Suite 200 Los Gatos, CA 95032 408-852-9263 www.brightsign. HARDWARE MANUAL BrightSign HD120, HD220, HD1020 BrightSign, LLC. 16795 Lark Ave., Suite 200 Los Gatos, CA 95032 408-852-9263 www.brightsign.biz TABLE OF CONTENTS OVERVIEW... 1 Block Diagram... 2 Ports...

More information

DOEPFER MIDI TO SYNC INTERFACE MSY2. User's Guide (English)

DOEPFER MIDI TO SYNC INTERFACE MSY2. User's Guide (English) DOEPFER MIDI TO SYNC INTERFACE MSY2 User's Guide (English) www.doepfer.com INTRODUCTION MSY2 is an interface that converts the MIDI realtime events CLOCK, START and STOP into the corresponding signals

More information

ECE 306 Lab 4 Class A, B and Class AB Amplifiers

ECE 306 Lab 4 Class A, B and Class AB Amplifiers ECE 06 Lab 4 Class A, B and Class AB Amplifiers Prelab Assignment Write a short description of the differences between class A and class B amplifiers. Be sure to include at least one advantage and disadvantage

More information

PROCEDURE: 1. Measure and record the actual values of the four resistors listed in Table 10-1.

PROCEDURE: 1. Measure and record the actual values of the four resistors listed in Table 10-1. The answer to two questions will help you identify a series or parallel connection: (1) Will the identical current go through both components? f the answer is yes, the components are in series. (2) Are

More information

Splitter 525/1125 & Splitter Control Chip Instruction Manual V1.30. (C)1995-1996 Vine Micros Ltd

Splitter 525/1125 & Splitter Control Chip Instruction Manual V1.30. (C)1995-1996 Vine Micros Ltd Splitter 525/1125 & Splitter Control Chip Instruction Manual V1.30 (C)1995-1996 Vine Micros Ltd Splitter 525 & Splitter 1125 Introduction Features common to both Splitter 525 and Splitter 1125 1. Simple,

More information

Optical Communications Laboratory, Exercise No. 2. PIN and APD Photodiode characteristics

Optical Communications Laboratory, Exercise No. 2. PIN and APD Photodiode characteristics Optical Communications Laboratory, Exercise No. 2 PIN and APD Photodiode characteristics Objective: To measure a number of the important characteristics of a PIN diode and an Avalanche Photodiode (APD):

More information

RS-422 and RS-485 Application Note

RS-422 and RS-485 Application Note RS-422 and RS-485 Application Note INTRODUCTION The purpose of this application note is to attempt to describe the main elements of an RS-422 and RS-485 system. This application note attempts to cover

More information

The Oscilloscope and the Function Generator:

The Oscilloscope and the Function Generator: The Oscilloscope and the Function Generator: Some introductory exercises for students in the advanced labs Introduction So many of the experiments in the advanced labs make use of oscilloscopes and function

More information

GSM Interfacing Board

GSM Interfacing Board Campus Component Pvt. Ltd. DISCLAIMER Information furnished is believed to be accurate and reliable at the time of publication. However, Campus Component Pvt. Ltd. assumes no responsibility arising from

More information